Law of the Pampas (1939) is a Adventure, Western film that follows hoppy and Lucky are headed to South America to deliver a heard of cattle. Bay guy Ralph Merritt gets in their way. For a while. Currently, you can watch Law of the Pampas on fuboTV, MGM+ Amazon Channel, MGM Plus Roku Premium Channel, MGM Plus. Streaming availability may vary by country and platform over time. It has a user rating of 5.0 out of 10 from 3 votes. Fans of adventure movies may also want to explore similar titles below.